Received: by 2002:ac0:a594:0:0:0:0:0 with SMTP id m20-v6csp1816637imm; Tue, 22 May 2018 09:46:42 -0700 (PDT) X-Google-Smtp-Source: AB8JxZrIn7+U15MLSWKDMa+UwcddNL8r3kwG0aU+FHniZPnDFmUhfqdfFhidC33pYoJTUdzy9eV8 X-Received: by 2002:a17:902:7406:: with SMTP id g6-v6mr24754477pll.237.1527007602263; Tue, 22 May 2018 09:46:42 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1527007602; cv=none; d=google.com; s=arc-20160816; b=A/YLn6FJD4H62tu0xgyfEC9Chv8TTp67Hkvor8tnlXatNa5DxWep1k8QcQP82F/zT+ Db4rfxd+No90p4t/i+NPF0Pg+ksKQiNso9hIamUbCnI7O9GZtW2DVCDSpJPOw6pjdpaT 2bUe8PmuczssgeL9Xpe+fswPBJlN94ZNaz7ZZAcOuaaDB+sreYb7O0wawwOBtgGZug0K Mbtf01RvWP7Cj3AIlimNwx0DdgVSH5uqYVoy4VKy+pMvTYkKDfkhT75P8DjFYtISUP3X iyrZjHZEpoSQenn/CnmAt4K3zqJqUfmJxdByC+x5wTeBZe3iGHt4/XjKFqHZrVrsnRwY Ix3Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:feedback-id:mime-version:user-agent :references:message-id:in-reply-to:subject:cc:to:from:date :dkim-signature:arc-authentication-results; bh=BOf7jd8ARBlbHWxzh8XIF4R5rnT6Xa1L3BDcjae1o9s=; b=vfc+eDpW65VIgww852mjYVR/dig6yGGyKJ1MqrKpZyu9GGLPJfoxWCfLMpp2bglpp/ oJq9lBbUCrvLe3cqJhjDjDUIFcgZrAhIw4UZhrM4UxEq0UDIREoaw6NJJevcLF7X8v2L fTkyLrXXua8f0svEQ2C2q13AgHPqNOfWp8EPgb6cEe9Pi/JfuR1MfYnEfXcl5d4znw+0 QrNbjayq0S8otQBBlBSdS+jf+iLuWgcNujOMTKsPLj+F1FvyxEVKCqN+RV4mLWQMYVnY 82P8VZFUcSYH+AoKzfTYSBDDp3b1zsvoyDReCO8iVGfNXbcEJ3yirnFHEFrCxVq3HXdE wIow== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amazonses.com header.s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug header.b=RcRegXLm; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 203-v6si16754709pfz.160.2018.05.22.09.46.27; Tue, 22 May 2018 09:46:42 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@amazonses.com header.s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug header.b=RcRegXLm; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751371AbeEVQqL (ORCPT + 99 others); Tue, 22 May 2018 12:46:11 -0400 Received: from a9-114.smtp-out.amazonses.com ([54.240.9.114]:46064 "EHLO a9-114.smtp-out.amazonses.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751196AbeEVQqG (ORCPT ); Tue, 22 May 2018 12:46:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug; d=amazonses.com; t=1527007566; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:MIME-Version:Content-Type:Feedback-ID; bh=BOf7jd8ARBlbHWxzh8XIF4R5rnT6Xa1L3BDcjae1o9s=; b=RcRegXLmShmcpCN5KM3G0sAyIS41ddJ4vDJzrXS43zZ21MbS+BuFmir7LDwMG6KW G+cOOVJV0xPabhMUML13CCASxmTXfjQG+jgxQlmUUkghKCE8RcoSb8KYE7bfPUWzqQE ObHdD1vidnUrbjRTGJG1KNRTwhvHwXuB0LhLDXdE= Date: Tue, 22 May 2018 16:46:05 +0000 From: Christopher Lameter X-X-Sender: cl@nuc-kabylake To: Dave Hansen cc: Boaz Harrosh , Jeff Moyer , Matthew Wilcox , Andrew Morton , "Kirill A. Shutemov" , linux-kernel , linux-fsdevel , "linux-mm@kvack.org" , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Peter Zijlstra , Rik van Riel , Jan Kara , Matthew Wilcox , Amit Golander Subject: Re: [PATCH] mm: Add new vma flag VM_LOCAL_CPU In-Reply-To: <50cbc27f-0014-0185-048d-25640f744b5b@linux.intel.com> Message-ID: <0100016388be5738-df8f9d12-7011-4e4e-ba5b-33973e5da794-000000@email.amazonses.com> References: <0efb5547-9250-6b6c-fe8e-cf4f44aaa5eb@netapp.com> <20180514191551.GA27939@bombadil.infradead.org> <7ec6fa37-8529-183d-d467-df3642bcbfd2@netapp.com> <20180515004137.GA5168@bombadil.infradead.org> <010001637399f796-3ffe3ed2-2fb1-4d43-84f0-6a65b6320d66-000000@email.amazonses.com> <5aea6aa0-88cc-be7a-7012-7845499ced2c@netapp.com> <50cbc27f-0014-0185-048d-25640f744b5b@linux.intel.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-SES-Outgoing: 2018.05.22-54.240.9.114 Feedback-ID: 1.us-east-1.fQZZZ0Xtj2+TD7V5apTT/NrT6QKuPgzCT/IC7XYgDKI=:AmazonSES Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 22 May 2018, Dave Hansen wrote: > On 05/22/2018 09:05 AM, Boaz Harrosh wrote: > > How can we implement "Private memory"? > > Per-cpu page tables would do it. We already have that for percpu subsystem. See alloc_percpu()